Match Types

Combo
Score multiple hits on your opponent in quick succession. Highest combo wins.
Here's how it works: When you initially land a hit on an opponent, a 2-second count will appear next to your damage counter. If you hit them again within that time limit, the timer will reset to 3 seconds again. Once you run out of time, it logs the number of hits you scored.
Hitting multiple opponents at once with one attack multiplies your hits. (if you hit 2 players with the same attack, it's 2 hits multiplied by 2, so it would count as 4 hits)
Getting KO'd with your timer on ends your current combo immediately.

How about a battle mode where you infinate lives, and the match keeps going on until a player gets a certain number of kills, not deaths, but kills. Sucide won't count as a kill. Also the amount of kills it takes to win can be changed.